Obtain the power factor and the apparent power of a load whose impedance is Z =...
A 110-V rms,60-Hz source is applied to a load impedance Z The apparent power entering the load is 120 VA at a power factor of 0.507 lagging References eBook& Resources Learning Objective: Understand apparent power power and power factor Section Break Difficulty Medium value 10.00 points Calculate the complex The complex power is VA. Hints References eBook & Resources
5. The first load (zl) is drawing an apparent power of 7kVA at power factor of 0.82 lagging. The second load (22) is drawing 25kW of real power at power factor of 0.24 lagging. The third load (23) is drawing 23.25kW of real power and supplying 19kVAR of reactive power. Find the complex power from the voltage source and the power factor of the voltage source. vg(t) =159cos(337t).
Example 1 The voltage across the load is v(t) = 60 cos(wt - 10°) V and the current through the element in the direction of I voltage drop is i(t) = 1.5 sin(wt + 50°) A. Find a) The complex and apparent powers b) The real and the reactive powers c) The power factor and the load impedance.
Exercise 8.02 Calculate the apparent power, the reactive power, the true power and the power factor in the circuit below. Given: v=120sin(377t + /9) (V) i = 36.0 sin(377t) (A) ZZO
An Inductive load 1 phase pulling power 6 kW on power factor 0.85 lagging and voltage 230 V. Find : a) Reactive power and Apparent power consumed by the load b) Load impedance c) Draw the triangle power of the load
4. In the circuit below, the impedance Z1 dissipates 10 kW with a power factor of 0.80 lagging. Z2 draws 14 kVA apparent power with a power factor of 0.70 leading. The frequency of the source is 60 Hz 208 V (rms)- Z1 (a) Determine the impedance Zi. (b) Determine the impedance Z2. (c) Determine the complex power Ssource for the voltage source. (d) Sketch and label the power triangle for each impedance, labeling the lengths of the sides and...
5. In the circuit below the power source with the source impedance of Z, "wakes up" at t=0 and goes from O V to 3 V-that voltage is routed to the interface via a motherboard trace with characteristic impedance Z, and total signal propagation time through it of 10 ns; the interface is approximated with a load impedance Z (see schematics below). The Load is intended for the value of stead-state voltage from this source, but can tolerate voltage surges...
If v(t) = 120Vrms*cos(377t+60) i(t) = 2Arms*cos(377t) Find the instantaneous power, average power, power factor and complex power.
A balanced A-connected load of Z,=12+39.0 12 is connected to a power supply via a transmission line with impedance of Zrl=0.6+j2.5 12, find Transmission Lines o 20820 V AC 2084(0–240°) v umaza 10 AC 2084(0-120°) v mm | za | Three-Phase 208 V, 60 HZ Power Supply Three-Phase A-Connected Balanced Load @@OGO E the load line and phase voltages (magnitude and angle), the load line and phase currents (magnitude and angle), the total load's real, reactive, and apparent powers, the...
Problem 1 [Maximum Possible Points 34) A power controller is used supply the required power to the load as shown below. The source voltage is vs(t) = 170 cos(3771) V. Assume the resistance of the load is 1092. The load voltage is given by: (1) = 60 + 20 sin(377t - 20°) - 10 sin(1131t+15°) + 3 cos(1885t +40°) - 0.2cos(2639t) i () von Power Controller (1) Figure 1 For this controller determine the following a) DC and RMS of...